Question

我有一个类似下面的JSON

sampleArray=[{name:'john',hobbies:['sports','music']},
                 {name:'steve',hobbies:['singing','movies','playing']},
                 {name:'raj',hobbies:['movies']},
                 {name:'nikil',hobbies:['music','movies','playing','tennis']},
                 {name:'bose',hobbies:['sports','music']},
                 {name:'suku',hobbies:['music']},
                 {name:'sai',hobbies:['sports','music','watchingTv','movies','tennis']},
                 {name:'vivek',hobbies:['sports']},
                 {name:'ram',hobbies:['sports','music','watching']}]

现在基于爱好数组长度，前三个最大数组长度对象必须推送到一个数组，其余对象必须推送到另一个数组

我所期待的就像

 resultantArray1=[{name:'sai',hobbies:['sports','music','watchingTv','movies','tennis']},
                  {name:'nikil',hobbies:['music','movies','playing','tennis']},
                  {name:'steve',hobbies:['singing','movies','playing']}]



 resultantArray2=[{name:'john',hobbies:['sports','music']},
                  {name:'raj',hobbies:['movies']},
                  {name:'bose',hobbies:['sports','music']},
                  {name:'suku',hobbies:['music']},
                  {name:'vivek',hobbies:['sports']},
                  {name:'ram',hobbies:['sports','music','watching']}]

Answer 1

您可以按照兴趣爱好的长度进行排序，然后将前三名放入resultantArray1，其余的放入resultantArray2

var sampleArray=[
                 {name:'john',hobbies:['sports','music']},
                 {name:'steve',hobbies:['singing','movies','playing']},
                 {name:'raj',hobbies:['movies']},
                 {name:'nikil',hobbies:['music','movies','playing','tennis']},
                 {name:'bose',hobbies:['sports','music']},
                 {name:'suku',hobbies:['music']},
                 {name:'sai',hobbies:['sports','music','watchingTv','movies','tennis']},
                 {name:'vivek',hobbies:['sports']},
                 {name:'ram',hobbies:['sports','music','watching']}
                ];

sampleArray.sort(function(a, b){
  return b.hobbies.length - a.hobbies.length;
});

var resultantArray1 = [].concat(sampleArray);
var resultantArray2 = resultantArray1.splice(3);

console.log(sampleArray);
console.log(resultantArray1);
console.log(resultantArray2);

如何在JSON中找到数组的前三个最大长度

1 个答案: